input description update

diff --git a/django_simple/todo/templates/input.html b/django_simple/todo/templates/input.html
index 17a4756..63426ff 100644 (file)
--- a/django_simple/todo/templates/input.html
+++ b/django_simple/todo/templates/input.html
@@ -13,6 +13,9 @@ As input Unres server can use protein sequence given using one letter code
 <li>
 Only standard codes of aminoacids are recognized in PDB files.
 <li>
+PDB files can be downloaded from the PDB database based on given PDB code.
+To select only single chain from use PDB_code:chain_id notation (5G3Q:B)
+<li>
 Unres server requires input PDB files with continuous (without breaks)
 protein chains. PDB files with gaps in the structure have to be first prepared
 by filling up all missing residues. There is a plan to add such service to